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Grade: 12th pass
`        Two blocks a and b of mass 10 kg and 20 kg respectively are placed as shown in figure. Coefficient of friction between all the surfaces is 0.2 (g=10m/s2), then :A. Tension in the string is 306 NB. Tension in the string is 132 NC. Acceleration of the block B is 2.6 m/s2D. Acceleration of the block B is 4.7 m/s2`
6 months ago

## Answers : (1)

Vikas TU
10072 Points
```							 Since block M1 is attached to the string so it will remain stationary M2 has tendency to move downwards.so friction on m2 will act in upward direction.N is the force by which the both block are pressed such that  N=Tcos30For block m1M1g+mu(Tcos30)-Tsin30=M1For block m2M2g-(muN+muN)=m2aOn solving t is equal to 250 Newton and a is equal to 3 M per second square
```
6 months ago
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